/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.kie.api.definition.process;

import java.util.Map;

/**
 * A connection is a link from one Node to another.
 */
public interface Connection {

    /**
     * The Node the connection starts from.
     */
    Node getFrom();

    /**
     * The Node the connection goes to.
     */
    Node getTo();

    /**
     * The type of exit point of the from Node.  Defaults to "DROOLS_DEFAULT".
     */
    String getFromType();

    /**
     * The type of entry point of the to Node.  Defaults to "DROOLS_DEFAULT".
     */
    String getToType();

    /**
     * Meta data associated with this connection.
     */
    Map<String, Object> getMetaData();

}
